WHomework set 10_solns_2011

WHomework set 10_solns_2011 - Homework set 10 Problems 20.9...

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Homework set # 10 Problems: 20.9, 10, 12, 17, 21, 22, 23, 33 Solutions: 20.9 From cos B B A t t  , we find that 3 2 18 10 V 0.18 T cos 0.10 m cos0 B A t s 20.10 cos B NBA t t  , so cos t B NA  or 3 5 2 0.166 V 2.77 10 s 5.20 10 T 52.0 T 500 0.150 m 4 cos0 cos90 B   20.12 The initial magnetic field inside the solenoid is 7 3 0 100 4 10 T m A 3.00 A 1.88 10 T 0.200 m B nI (a)  2 3 2 7 2 cos 1.88 10 T 1.00 10 m cos0 1.88 10 T m B BA (b) When the current is zero, the flux through the loop is 0 B and the average induced emf has been 7 2 8 1.88 10 T m 0 6.28 10 V 3.00 s B t  20.17 B v , where B
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